Gyratory sifter.



, J; WARRINGTON.

GYRATORY SIPTER.

No. 858.930. 4 PATENTED JULY 2, 1907. l y APPLICATION I'ILBI) FII-53.11, 1907.

ZSHEETS-SHEET 1.

the United States, residing UNITED STATES PATENT oFIIICE.

.Insee IIIARRINGTON, on INDIANA-roms, INDIANA, AssIGNoR -To NORDYKE sa "MARMON COMPANY, oF INDIANAPOLIS, INDIANA, A oonPoRAIIoN oF INDIANA.

i L GYRATDRIY :SIFTEIL` Patented July 2, 1,907;

Specification of Letters Patent. Application ned February 11,1`97. serial No. 356,254. v

To ell whomitlmay concerm v Be it known that I, JEssE WARRINGTON, aicitizen of `at Indianapolis, in thecounty of Marion and State of Indiana, have invented The gyratory structure certain new and useful Improvements in Gyratory Sifters, of which the following isa specification.

In executing various kindsof Work'a gyratory Inove-A Vertical sectional views as seen when looking in the direction Indicated by the arrows from the dotted lines manner. This is the case, fo'r example, in that class of machinery A ture 2l contain bearings 24 and 25. used in flouring mills, by means of which the sieyingor boliting operation is performed. In the" driving oflsuch' structures it has been either to mount the In these bearings and 28-the' center ofl gravity or both) weights, as

' axis of the shaft,

be secured. lThese weights may be of any desired size Plain solid weight-arms are shown.

to, and also thc driving pulley, are supported by suitable step-bearings on an (usually the floor),` so that the gyratory structure is resaid surface, as when the machine is starti'n ltained its regular movement, being restrained only by ment, such as is incident to a rigid connection between" the building andsuch gyratory structure.

Referring to the accompanying drawings, which are made a part hereof and on which similar reference char- Said adjacent surface or 'chamber-bottom is preferablyA atfas shown-inligs. 4 and 5; but it may bevconcave, if desired, las 'shown in pulley 31 is mounted in al suitable step I mount a shaft 26, 'andy the shaftcarr'es at its ends (one and before it has at- '4 'hub ofthe Weight-arm 27,

Fig. l6'. 'As'it is intended to keep this chamber filled with lubricant, the movement course very easy.

The yoke 41 is mounted by means of pivots 42 on the oi 'the block 34 is o i extending outwardly and downwardly therefrom. Arms 43 are mounted on the pivots 44 carried by said ears, an'd these pivoted arms extend down into openings or cavities in the pulley 3l, and, together with the yoke 41, form means o connection between said-pulley and the hub on shaft 26, so that said pulley, when rotated, will impart arotary movement to said shaft, and causesaid shaft and the parts connected thereto to travel about the axis indicated by the pin 3 5.

Having thus fully described mysaid invention, what I claim as new, and desire to secure by Letters Patent, is:,v l

g 1. In combination, a suspended structure, suspending means therefor, n shaft mounted in said structure, a fixedly mounted driver surrounding the axis of movement, a support forsaidshaft independent of said structure and said driverfand yielding connection independent of the suspending means between -the suspended structure and the driver whereby said structure is permitted a gyratory movement in operation.

2. In combination, a suspended structure carrying a vertically-.positioned shaft, weights connected with said shaft whereby it is Vgiven a tendency when in -motion to travel in a gyratory path, a driver mounted in a ,fixed bearing adjacent to the end of said shaft and surrounding the axis of movement, a support for the shaft independent of the driver, and yielding connections independent ofthe suspending means between said driver and said shaft whereby the latter may be driven from. the .former not withstanding the difference between the axis of rotation of the driver and the axis of gyration of the latter.

3. In combination, va suspended body, a shaft Varranged centrally therein ,and Weighted'to produce .a gyratorymovement, a pin set eccentrically to said shaft and extending downwardly and resting in a step-bearing whereby the weight of said shaft and yits weights are supported, a xedly mounted,driversurrounding the axis ofrotation, and a hearing in which said-driver is mountedadjacent vto' the step-bearing carrying the pin:

4. Incombination, a suspended body, centrally therein and a shaft arranged weighted to produce a gyratory movemena'a' pin set eccentricaily to said shaftandfeiztend-t4 ting` and its weights are ing downwardly and res weight of said shaft supported, 11a;

driver having a central opening thro/ugh which said pin,- and abearing in;-

extends but'free of contact therewith, which said driver is mounted adjacent carrying the p'in.

5. In combinatiom, have a gyratory movement, a ary bearing carried on said driver having -a shaft mounted in to the step-bearing an adjacent portion of `the`building,

the suspended structur`e, anda pin set eccentric to said shaft but secured thereto and extending down through theopening in the driver, and a step-bearing for said pin.

6. In combination, a suspended 'have a gyratory movement, adriver mounted in a stationary bearing carried on an adjacent portion of .thebuildingg said driver having a central opening of considerable size, a shaft mounted in the suspended structure, and a pin set eccentric to said shaft but` secured theretol and 'extending downthrough the opening in the driverpandastep-bearing for said pin consisting of a suitable block slidably mounted on ya base.

7.' In combination, therefor, means .a stationary driver, a'shaftlto said suspended'body, a support for said shaft independent of said driver, anda yielding connection betweensaid driver and the shaft of said stationary body whereby they are engaged for coincident a suspended body, suspending devices rotation but permitting a relative movement equal Vto the and has tour ears (two pairsl -bearing for said pin carrying abnormal throw .of the in a step 'bearing :whereby the' a suspended vstructure .arranged :to l driver mounted 'in -a' stationa central opening of considerable size, r

-structure larranged `to y 'for giving said body a gyratory'movement,

distance between the axis of rotation and the axis of gyra tion. V

8.In combination, a suspended body, means for giving the same a gyratory movement, a stationary driver, and a yielding means connecting the shaft of said suspended body and said driver, consisting of a yoke pivoted to n hub on said shaft and arms pivoted to said yoke and extending to and engaging with said driver.

9. In combination, a suspended structure arranged to have a gyratory movement, "a'driver therefor, a shaft mounted therein, a pin set eccentric to said shaft, a stepthe weight thereof and of the shaft, said step-bearing being free to move over the surface of the support on which it rests, and said support.

10. In combination, a suspended structure arranged to have a gyratory movement, a driver therefor, u shaft mounted in bearings engaging with said suspended structure, a pin set eccentric to said shaft, and a chamber adapted to contain a lubricant and which is larger than 'said pin into which the lower end of said pin cnters and upon the bottom of wh'ich it is supported and adapted io illOVe.

11. In combination, a suspended structure arranged to have a gyratory movement, a driver therefor, .a shaft thereto, a pin whose axial line is different from thnt of the shaft but operatively connected therewith, and a support upon which said pin. rests having a friction surface over which said pin may niovc, whereby said pin and the parts carried thereby are frictionally restrained und the weight thereof supported.

12. In combination, a suspended structure arranged io have a gyratory movement, a drivel' therefor, u shaft thereto, :i pin whose axial line is different from that of ihc 'shaft but operatively connected therewith, a support upon -which said pin rests having a friction surface over which said pin may move, -and a bearing-block interposed heA tween said pin and the surface of said support.

13, In combination', a suspended structure arranged to have a gyratory movement, a driver therefor, a shaft theretoya pin whose axial line is different from that of the shaft but operatively connected therewith, and a support ,upon which said pin rests having,r a friction surface over which said pin may move, said surface being surrounded hy a wall thus forming also a lubricant chamber'.

`14. In combination, .a suspended structure arranged to have a gyratory movement, a driver therefor, a shaft thereto, a pin set eccentric to said shaft, and frictionnl means co-acting with the eccentric pin forrestraining suspended structure during gyrution.

15. -In comblnation, a suspended structure arranged to `have a .gyratory movement, a driver therefor, 4a shuft mounted in bearings engaging with said suspended structure, a pin whose axial line is different 'from that of the shaft but loperatively connected therewith, and frictionnl means supporting the weight of the pin and partscarricd thereby and co-acting with said pin for restraining abnormal throw of the'structure duringl gyration.

-16. In combination, av suspended structure, a fixcdly mounted-driver surrounding the axis of movement, a shaft in said structure, a pin whose axial line is different from that of the shaft but operatively connected therewith, a support upon which said pin rests, and a frictlonal dc.- vice co-acting'wlth said pin for restraining abnormal throw of the structure during gyrati'on.

17. The combination, in a gyratory sitter, of a slftcr body, means whereby the same is suspended, bearings urranged centrally of said body, an eccentrically-wcightcd shaft mounted in said bearings, an eccentric pin on said shaft, lo. step-bearing supporting said pin und through it said weighted shaft, a-iixedly-mounted dzlvcriarrungcd nd- ;iacent thereto and surrounding the nxs of movement, and yielding connection'between said driver and said shaft.

In witness whereof, I, lhave hereunto set my 'hand and `seal at Indianapolis, indiana, this fifth day of Februar; A. AD..one thousand=ninehundred and seven.

JESSE WARRINGTON. [In 8:]

Witnesses z Crrns'rnn BRADFORD,

Tricia-As W. McMnANs, 

